JPS6146926A - Optical apparatus for forming 3-d animation - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lens system that is extremely useful when each frame of a three-dimensional photograph is compiled into a moving image.

[Prior art]

Stereoscopic video requires simultaneous exposure of left and right photographic images; these separate images are then projected to each eye to form a binocular stereoscopic image. In the early stages, two projection cameras were used side by side to expose separate films. However, in this method, the synchronization of the projected image, its irradiation,
There was a problem with alignment, which impaired the three-dimensionality of the projected image.

For this reason, a system was developed that exposed the left and right images of a single frame. Since the juxtaposition of these images was not perfect, I thought it would be best to expose the left and right images of each frame perpendicular to each other. A variety of complex optical systems have been developed with the intention of capturing and projecting satisfactory stereoscopic video. As an example of such:
R.V. Bernier, U.S. Pat. No. 3,511,
No. 191, W. C. Hock US Patent Brother 3,825,3
No. 28, A. M. Marks et al. U.S. Patent No. 3,99
There is No. 0,087.

These patents cover complex relay lens systems and
! A complex or special prism was required for the folding optical system. For example, in the case of the Bernier patent,
It uses a very complex prism, and the latest +7
It was impossible to use a 7-rex projection camera due to the course, A.M. The Marks et al. patent uses polarizers to minimize image smearing and a single final lens system that focuses the image on the focal plane, so it is 2-1/2
f aperture (top) is lost, depth of field of view is lost,
Hock's patent is similar in some respects and also uses a complex relay system. For the above reasons, there is a demand for a lens system that is particularly useful when capturing each frame of a three-dimensional photograph into a moving image.

The left and right negative optical elements serve as front optical elements.
-e) The present invention is directed to a moving image system for one-frame three-dimensional photography in which the achromatic lenses are spaced apart laterally. The tilted rhomboid prism transforms the horizontally distant raw glaze into vertically close image axes. A separate rear lens system of each of these vertically spaced image glazes images the left and right images onto the film plane. Focal length adjustment is achieved by adjusting the negative achromatic lens along the image glaze.
Control of the fuvagence by lateral adjustment of the rear lens system.

The object of the present invention is to develop a video system for single-lens three-dimensional photography, and in particular to use existing camera retrofits.
) to provide a lens system that

Another object of the present invention is to provide a one-frame three-dimensional lens that converts left and right incoming light into upper and lower positions using a conventional rhombic lens.

Still another object of the present invention is to provide a lens system for three-dimensional photography in which a unique lens system adjusts the focal length at a forward position when moving a negative achromatic lens along an image glaze. It is.

Yet another object of the present invention is that when focusing on a nearby object, the focal length is shortened to greatly reduce the visual field and avoid the object from touching the green of the screen mask to improve the stereoscopic effect. Another object of the present invention is to provide a negative achromatic lens system in which the focal length of the optical system changes as the focus changes.

Front negative optics retro 7 year olds (retrofocus)
s) To provide a video system for one-frame three-dimensional photography that provides different lens systems with different visions, in which the lenses have different curvatures and do not fundamentally change the balance of the optical system. One aspect of the present invention includes an arrangement of elements capable of slight positive and negative reciprocal movement in the front negative optical system, which provides a zoom effect by changing the focal length.

The purpose of the present invention is to provide a positive slide for projection.
An object of the present invention is to provide a lens system for three-dimensional photography that can be used for still images.

Another object of the invention is to provide a lens system for three-dimensional photography in which focus and convergence are accessible from either side of the camera.

Yet another object of the invention is to provide an internal aperture between the rhombic prism system and the rear lens system, on which the aperture carries a filter that controls exposure and color modification.

[Description of preferred embodiments]

A lens system 10 of the present invention for three-dimensional m-shading of -frames, which is particularly useful for a lot of moving images, is shown in Figs. 1.6, 7, and 8.11.
Lens system 10 includes a main housing 12 . Len, rii in the direction from the object to the film plane.

Considering that, the main housing 12 is shaped like a matte box with an open front and carries a shade 14 at its front end.In addition to the normal lens shade function, the shade 14 has an upper blade 16 and an upper blade 16. A lower blade 18 is provided. This minimizes excess light. Excess light in a three-dimensional system is deflected by other image glazes and impairs the clarity of the image.

The blades 16,18 are sized to prevent light entering from outside the acceptable field angle from reaching the front lens.

The main housing 12 has a bottom 20. Left and right sides 22, 24° top $
It is equipped with 26. These parts form a rectangular, elongated housing structure, as shown in Figures 6.7 and 8.9. The outer image glazes of the prism structure described below are parallel and arranged in a front-to-back direction. The left and right statues of Yuzu 28°30 are shown in Figure 1.
Approximately 65J11. In other words, the distance is the distance that a normal human eye would open. 7th degree 11th
As can be seen, left and right rails 32 and 34 are attached to the front and rear blocks 38, 40. These rails are parallel to the image glaze. It is attached to a guide 37t39 which slidably covers the rail 32.34.The lens housing 36 can therefore be slid smoothly in a path parallel to the image glaze.

The left and right biconvex lenses 42 and 44 are negative achromatic lenses and are attached to the lens housing 36. The lens glaze is on the left and right image axes. These lenses are retrofocus lenses so that the lens system is focused by moving the lens housing 36 on rails. With such a configuration, complete focusing can be achieved simply by moving the lens housing 36, which is a front optical body and includes a negative achromatic lens, along the image blur.

Lenses 42, 44 have multiple lens elements.

In the illustrated case, there are three.

Furthermore, these lenses can be shaped such that the aspect ratio of the image in the film plane is different from that of the object.

By using the Litro 7 Orcus biconvex negative achromatic lens, you can explore the desired wide angle toward the object. Furthermore, by using a negative element, the focal length of the rear lens system can be shortened. This allows the rear part to be positioned further forward even if the focal length is short. By positioning it away from the film surface 158,
It is possible to eliminate a rotating reflex mirror shutter 1 with an angled rear lens system. The image is reflected on the cameraman's view lens 111.

Further, a negative retrofocus lens system is advantageous in the following α. In other words, focusing the lens close to the object shortens the focal length of the lens system, which increases the angle of view, which is advantageous for stereoscopic photography.

The position of the lens housing 36 along the rail is controlled by a focusing knob 46. Knob 46 is boss 4
Rotate on 8. The post 48 is attached to the top of the main housing 12. The post 46 is attached to the spiral cam 5o.
It carries A cam lower post 52 is attached to the top of the lens housing 36. The cam 7 lower post 52 is attached to the top of the lens housing 36 and slots 54 in the top 26 of the main housing 12.
extends upward through the Thus, rotating the knob 46 moves the lens housing 36 and negative achromatic lenses 42, 44 forward.

The spring 56 presses the lens housing 36 backward,
The six knobs 46 that maintain contact between the cam 7 lower boss 52 and the spiral cam 50 can be graduated as desired.

Friction pad 58 below spiral cam 50 and above top 26
provides friction and proper feel to the knob 46 and also holds it in place after it is set. A cam cover 60 is on the cam 50 and covers the slot 54. The joint between the knob 46 and the cover 60 can be closed with felt.

Figures 51, 5, 7.13 show the prism assembly 62, which allows the laterally spaced particles 28, 30 to be brought close enough together to record them on a single frame of film. , and position the images so that they are one above the other on the film plane.The prism assembly 62 is attached to the left and right rhombic prisms 64 and 66 together with the mounting plunket 68.
It is equipped with Plunket 68 covers both prisms,
It has a clamp 70 to clamp them together. In FIG. 13, the plunket 68 has a figure 7-shaped surface that engages between the two prisms to maintain the proper angular relationship. The planket is attached to a strap and is secured to the main housing 12.

The plunket rotates on the strap so that the prism is oriented.

Behind the prism, the optical crystals are also separated from each other. Top! #72 and the lower shaft 74 are shown in Figure 3.
t'4・Glaze 72 and 74 are parallel to each other
1 image passage is provided. M72 is just above Yuzu 74. The distance between glazes 72 and 74 is 1/27 as shown in Figure 2.
It's lame. As shown in FIG. 1.4.13, the prisms 64, 66 have surfaces 76.degree. 78 on the glazes 28,30. The rear surfaces 80, 82 reflect the image path (imBe path) toward each other along paths 84.about.86. Surfaces 80 and 82 form an angle of 45 degrees, 9 so that
Passages 84 and 86 are perpendicular to passages 28 and 30.

Prism surfaces 88,90 are parallel to surfaces 80 and 82, respectively, and reflect image paths 84 and 86 onto lees 74 and 72, respectively. As mentioned above, the prism is rotated, as shown in FIG. 1, so that the image path glazes 72 and 74 are one above the other and parallel to each other. This is a simple prism configuration that provides the necessary optical configuration without the usual grinding of the elements. 3rd t4t
As shown in Figure 5t13, a large rhomboid prism is cut adjacent rear surfaces 92 and 94.

As a result, these overlap to form an upper and lower structure.

Behind the prism mounting part, there is an aperture holder 96 (Figures 7 and 9), which controls the amount of light on the film surface.
The aperture plate 98 has an aperture of 100 t1
02, and is slidably fitted into the opening holder. F ports 100 and 102 are selected according to the amount of light on the object and the film sensitivity. Opening 100° 102 is glaze 72 and 7
It's on top of 4. Aperture vi9B can carry a gelatin color control filter often used in color motion picture photography.

Spacer 104 is attached to the rear of aperture holder 96. The rear optical housing 104 attaches directly to the camera mount 106, thereby securing the entire system to the front of the camera.

The optical housing 104 includes upper and lower lenses 112.
．． It carries upper and lower lens housings IOS, IIO, respectively carrying 114.

V's Haunon 1i08yiio is optical housing 10
It is inserted into the pocket 116 of No. 4.

Lenses 112, 114 are typically placed directly on optical glaze 72, 74 in a one-on-one relationship. But by moving them laterally relative to each other, convergence can be controlled. Convergence is the apparent depth to the projection screen surface when performing stereoscopic projection. (app
(earence of depth). These lenses X can be adjusted laterally to achieve precise depth and special effects, but movement is preferably done without vertical image shift.

To make this adjustment, the upper and lower lens housings 108, 110 are connected to the upper convergence slide 118,
120, respectively. As shown in FIG. 7t10, a convergence slide is fitted into the face of the optical housing 104 and is also slidably pressed against horizontally oriented shoulders 122,124. Two conveyor slides 118, 120
In order to maintain relative relationship, link 126 (7th°8.
FIG. 10) Rotatably attached to pocket 128 and carrying control bin i30,132. These control pins engage slots 134, 136 in the conveyor slides 118, 120 (Figure 7.10); thus, as the upper slide 118 moves to the right (looking forward), the lower slide 120 moves to the left. The spring 135 in the slot 137 of the slide 118 presses against the interior wall of the optical housing 104, biasing the slide 118 to the left (looking forward) and biasing the slide 118 to the left (looking forward).

External control of convergence is convergence control/P1
38 (Fig. 6, 7.11).

A humbarence control knob 138 is rotatably mounted on a pin 140 and is locked to a dial 142 (FIG. 8), which can be graduated and carries a cam lamp 144 on its inner surface. . A cam 7 follower 146 is mounted on the top of the main housing 12 and moves laterally. A spring 148 is also attached to this (FIG. 8). The fin, V-ISO, extends rearward through the aperture of the aperture holder 96 and the spacer 103, and engages the slot 152 with a portion of the slide 118. (FIG. 8). Thus, by rotation of knob 138, upper and lower lens housings 108, 110
move laterally with respect to each other -6 Also, Len X' 112
t 114 laterally to control convergence. Movement of the lens changes the optical path and changes the image offset.

Figure 2 shows the upper and lower FFs 11154 and 156 positioned within a frame of film 158; a small lateral movement of these upper and lower images causes the projection system to change as seen by the left and right eyes. The depth of appearance, that is, the three-dimensional effect, is improved. Knob 138 can be directly scanned by the photographer and can be adjusted convergently to meet the needs of the photographic blurter.

It goes without saying that the present invention can be modified in various ways within the scope of its gist.

[Brief explanation of the drawing]

FIG. 1 is also a plan view of the optical system in the moving image system for one-frame three-dimensional photography of the present invention. Figure 2 is #lI2-2 in Figure 1.
A portion of the film along is shown. Figure 3 is the first
3 is a front view of the prism taken along line 3-3 of the figure; FIG. Figure flS4 is a plan view of the left prism. FIG. 5 is an exploded view of a pair of rhomboid prisms. Figure ff5S is an exploded view showing the external groove of the moving image system for one-frame three-dimensional photography according to the present invention. FIG. 7 is an exploded view of the same, with parts removed and parts shown in cross section. FIG. 8 is a plan view showing the structure of FIG. 6, with a portion removed and a portion shown in cross section. FIG. 9 is a side view of the opening. Figure 1 is a side view of the posterior lens system, with a portion removed and a portion drawn in cross section. Figure 11 shows fjS
This is a side view of the remains of Figure 6, with a portion removed and a section shown. Figure 12 is #112-1 in Figure 11.
FIG. FIG. 13 is a detailed exploded view of the prism mounting structure. Explanation of symbols 12... Main housing, 14... Shade:
6918... Blade. r71rpV>n":'!' (Contents 2+7-Q)
rI&, 5 ≦A6-. 5 Era, 6 f73.5 1TFa,
10 Written amendment (voluntary) November 9, 1980 1. Indication of the case 1982 Patent M No. 165551 2. Name of the invention Optical device for three-dimensional mm formation 3. Person making the amendment Relationship to the case Patent Applicant name: Chris Quay, Conton 4, Agent 6, Subject of amendment (1) Engraving of the entire specification (however, there are no changes to the interior) (2) Engraving of the entire drawing () (3) Appearance Letter of appointment and translation 7, amendments as per Attachment 8, Attached Class 8 Procedural Amendment (ISF) & Relationship with the person making the amendment -t'1-jf Applicant N7
2 cis Jiτi, ″L″′ 4, Agent (1) BII, j Sui Sakugu Shiba/Ran) ζmi (l114 people-
11 (θ Akira #l[I Book 1, Name of the invention Optical device for forming three-dimensional moving pictures 2, Claims (1) A housing comprising first and second laterally spaced lenses, first and second rhomboid prisms, and upper and lower rear lenses fIv; has a front portion, further has first and second laterally spaced optical lenses extending from the front portion of the housing toward the object, further has a rear portion, and has a rear portion, and has a rear portion, and has a rear portion, and has a rear portion, and has a rear portion, and has a rear portion, and has first and second laterally spaced optical lenses extending from the front portion of the housing toward the object. having attachment means at the rear of said housing for attachment, first and second laterally spaced lenses being on said axis and within said housing, said first rhomboid prism being attached to said first the second rhomboid prism has a surface on a laterally spaced axis of the second rhomboid prism, and the first and second rhomboid prisms have faces on a laterally spaced axis of the second rhomboid prism; one above the other to form upper and lower image paths, and the upper and lower rear lens configurations are above the upper and lower image paths and define upper and lower image paths. An optical device for forming a three-dimensional moving image, characterized in that the image is formed on a film surface of a camera. (2) The lens separated in the horizontal direction w5 is a negative retrofocus lens. The optical device for forming a three-dimensional moving image ft m described in the scope tjs (1) (3) The scope No. 1 of the patent b, characterized in that the lens subjected to gIiFfA in the lateral direction is a negative achromatic lens. The optical device for forming three-dimensional!I!l]iii according to paragraph 1). (4) The lens housing and the housing of the system have mutually engaging guides, the guides being oriented parallel to the axis. The patent is characterized in that the lens housing and the negative lens are moved forward and away from the camera mounting means to project an object onto the film plane of the camera. The optical device for forming a three-dimensional moving image according to any one of the above.(5) The optical device further includes a cam and a focus control knob, the cam being positioned to engage the lens housing, and the focus control knob being connected to the main housing. attached to and engaged therewith, and operation of the focus control knob is adapted to control cam position, thereby controlling the position of the lens housing within the main housing for focus control. Claim No. 1 characterized in (
4) The optical device for forming a three-dimensional moving image. (6) The first and second rhomboid prisms mentioned above are normal rhomboid prisms, with a front facing surface, a backward facing surface parallel to the iron surface, and a prism tilted at 45". 2. A prism according to any of the preceding claims, characterized in that the prism is tilted so that said laterally spaced lens stubs define vertically spaced image paths. An optical device for forming a three-dimensional moving image. An optical device for forming a three-dimensional moving image. The optical device for forming a three-dimensional moving image is intended to receive a filter. The lateral movement of the Zenth slide causes the other side of the convergence slide to move in the opposite direction. The optical device for forming a three-dimensional moving image according to item (9) of the scope of Patent B11, which is characterized by the above-mentioned upper and lower rear lenses that perform a directional movement. (11) A manually operable knob; Connect to the knob.
The Zensu slide is now positioned horizontally. cam 7 third, engaging one of the versens slides;
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lens system that is particularly useful when arranging each frame of a three-dimensional photograph into a moving image. [Prior art] Stereo rfIJii! In Ii, it is necessary to expose the left and right photographic images simultaneously. These separated images are then projected onto each eye, resulting in a binocular stereoscopic image. In the early stages,
Two projection cameras were used side by side to expose separate films. However, with this method, the synchronization of the projected images,
There was a problem with the alignment of the irradiation 9, and as a result, the quality of the projected image was impaired. For this reason, a system was developed that exposes the left and right images of the - frame. Since the juxtaposition of these images was not perfect, I thought it would be best to expose the left and right images of each frame perpendicular to each other. A variety of complex optical systems have been developed with the intention of capturing and projecting stereoscopic video; an example of such is U.S. Pat. No. 3,531,191 to R.V. Bernier; , W. C. Hock Yoneda Patent No. 3,825,328, and AlM, Marks et al. U.S. Patent No. 3,990,087. For example, the Bernier patent used a very complicated prism, and it was impossible to use a modern glue-flex projection camera due to its implantation. AoM
, Marks et al.'s patent uses a polarizing plate to minimize image smearing and a single final lens system that focuses the image on the radial plane, so its 2-1/2 f aperture (to
p) is lost, and the depth of field of view is lost. Mr. Hock's patent is similar to this in some respects, and this patent also uses a complex relay system for reasons such as zero or more, each frame of a three-dimensional photograph! There is a need for a lens system that is particularly useful when photographing 111 images. The left and right negative optical elements serve as front optical elements.
The present invention is directed to a moving image system for -frame three-dimensional photography in which -e) achromatic lenses are spaced apart laterally. The tilted rhomboid prism transforms laterally spaced principal axes into vertically adjacent images. A lens system at the rear of each of these vertically spaced image glazes images the left and right images onto the film plane. By adjusting the negative achromatic lens along the image residue, the focal length is adjusted,
Convergence is controlled by the lateral y4 alignment of the rear lens system. The purpose of the present invention is to use a single lens for three-dimensional photography! Il! lJ
Painting, especially existing camera trophies (retr)
of-it). Another object of the present invention is to provide a one-frame three-dimensional lens that converts left and right incoming light into upper and lower positions using a conventional @diamond lens. Yet another object of the present invention is that the unique lens system transfers the negative achromatic lens along the image g′! It is an object of the present invention to provide a lens system for three-dimensional photography that can change the focal length at the front position when performing JI. The further purpose of the present invention is that when matching the points to nearby objects, the distance of 1 < 5 points will be shortened, increasing the visual field and avoiding the objects touching the green of the screen mask. It is an object of the present invention to provide a negative achromatic lens system in which the focal length of the optical system changes as the focus changes so as to improve the stereoscopic effect. Front Negative Optics Retro 7 Orcus (retrofocu)
s)'gJi for one-frame three-dimensional photography, where the lenses have different curvatures, giving different lens systems with different vision without fundamentally changing the balance of the optical system;
ff! The purpose of the present invention is to provide an i-system that can change the focal length, that is, can obtain a zoom effect.
The front negative optic includes an arrangement of elements capable of slight positive and negative mutual movement. Another object of the invention is to provide a positive slide for projection;
It is an object of the present invention to provide a lens system for three-dimensional photography that is not used for still images. Another object of the invention is to provide a lens system for three-dimensional photography in which the focal point and focal point are accessible (ITI) from either side of the camera. By providing an internal aperture between the rhomboid Brisno system and the f& part lens system, on which the lens carries a filter that controls exposure and color modification. [Description of the preferred embodiment] Motion Il! The lens system 10 of the present invention for -frame three-dimensional photography, which is particularly useful for photography, is fjSl, 6, 7, 8.1.
Shown in FIG. 1, the Lenz system 10 punishes the main housing 12. Considering the lens system 10 in the direction from the object to the film plane, the main housing 12 is shaped like a matte box with an open front and carries a shade 14 at its front end. In addition, shade 1
4 includes an upper blade 16 and a lower blade 18. This minimizes excess light. Excess light in a three-dimensional system is deflected by other images and impairs the clarity of the image. The blades 16,18 are sized to prevent light entering from outside the acceptable field angle from reaching the front lens. The main housing 12 has a bottom 20. It has left and right sides of 22.24° and a top portion 26. As described in Figures 6.7 and 8.9, these parts create a rectangular shape.
III long Haukung structures are formed. The outer statues of the prism described below are parallel and arranged from front to back. The left and right images of 28°30 are shown in Figure 1, approximately 65 shoulders JI, or between the eyes of a normal human being! ! Only the chicks are separated. 3 from Figure 7゜11! l
As can be seen, left and right rails 32 and 34 are attached to front and rear blocks 38 and 40. These rails are parallel to the image axis. 1/in (The housing 36 is attached to the left and right guides 37 and 39. These guides slidably cover the rails:; The left and right biconvex lenses 42 and 44 are negative achromatic lenses and are attached to the lens housing 36.The axes of the lenses are in the left and right image extraction. These lenses are retrofocus lenses, so that the front optical assembly consists of a negative achromatic lens. Lens housing 3
Perfect focusing can be achieved simply by moving the lens along the image glaze. Lenses 42, 44 have a plurality of lens elements; in the case shown, there are three. Furthermore, these lenses can be shaped such that the aspect ratio of the image in the film plane is different from that of the object. By using the Litro 7 Orcus biconvex negative achromatic lens, you can explore the desired wide angle toward the object. Furthermore, negative F! - By using the lens, the focal length of the rear lens system can be shortened.As a result, even if the focal length is short, it is possible to position part a further forward. It is possible to eliminate the rotary reflex mirror Yakku 1 in which the a-part lens system is angled by positioning the lens system at an angle to reflect the image to the cameraman's view lens 111. is advantageous in the following respects: if you focus the lens close to the object,
The focal length of the lens, 1' system is shortened, which increases the viewing angle, which is advantageous for stereoscopic photography. The position of the lens housing 36 along the rail is controlled by an alignment knob 46. Knob 46 is post 4
Rotate on 8. Post 48 is attached to the top of main housing 12. Knob 46 is spiral cam 50
It carries The cam 7 lower post 52 is attached to the top of the lens housing 36. The cam 7 lower post 52 is attached to the top of the lens housing 36 and slots 54 in the top 26 of the main housing 12.
extends upward through the In this way, by rotating the lens housing 36 and the negative 3'
Move lenses 42, 44 forward. The spring 56 presses the lens housing 36 backward,
The knob 46 that maintains contact between the cam 7 lower boss 52 and the spiral cam 50 can be graduated as desired. Friction pad 58 below spiral cam 50 and above top 26
provides friction and proper feel to the knob 46 and also holds it in place after it is set. A cam cover 60 is on the cam 5o and covers the slot 54. The joint between the knob 46 and the cover 60 can be closed with felt. Figures 1 and 5t7-13 better illustrate the prism assembly 62. Prism assembly 62 includes laterally spaced I
P#28.30 are brought close enough to record on one frame of film and positioned so that the images are one above the other in the plane of the film. The f-rhythm assembly 62 includes a mounting blanket 68 as well as left and right rhomboid prisms 64.
It is equipped with 66. The bracket 8 has a clamp 7o that covers both prisms and clamps them together. In the $13 figure, the blanket 68 is V
It has a letter-shaped surface that engages the two prisms to maintain proper angular relationship. The blanket is attached to straps and secured to the main housing 12. The blanket rotates on the straps so that the prisms are oriented. Behind the prism, the optical glazes are also #l apart from each other. Up! 1/#72 and lower sleeve 74 are shown in FIG. Yuzu 72 and 74 provide image paths parallel to each other. Yuzu 72 is just above axis 74. The spacing between sleeves 72 and 74 is 1727 reams as shown in FIG. 1st
．． 4. As shown in Figure 13, the prisms 64 and 66 are
It has faces 76° and 78 at 8 and 30. Rear surface 80,
82 is an image path (im
0 planes 80 and 82 that reflect 45
degrees, such that passages 84 and 86 are perpendicular to passages 28 and 30. Prism surfaces 88,90 are parallel to surfaces 80 and 82, respectively, and reflect image paths 84 and 86 into phases 74 and 72, respectively. As mentioned above, the prism is rotated, as shown in FIG. 1, so that the image path sleeves 72 and 74 are one above the other and parallel to each other. This is a simple prism configuration that provides the necessary optical configuration without the usual grinding of the elements. 3rd, 4th,
As shown in FIG. 5.13, a large rhomboid prism is cut adjacent rear surfaces 92 and 94. As a result, these overlap to form an upper and lower structure. Behind the prism mounting part, there is an aperture holder 96 (Figures 7 and 9), which controls the amount of light on the film surface.
The aperture plate 98 has an aperture of 100 w10
2 and mfll! in the opening holder. It is packed in a J-like manner. Apertures 100, 102 are selected according to the amount of light on the object and the film sensitivity. Opening ioo. 102 is above Yuzu 72 and 74. Aperture plate 98 can carry a gelatin color control filter often used in color motion picture photography. Spacer 104 is attached to the rear of aperture holder 96. The rear optical housing 104 attaches directly to the camera mount 106, thereby securing the entire system to the front of the camera. 'Optical housing 1
04 are upper and lower lens housings 108, 11 carrying upper and lower lenses 112, 114 respectively.
It carries 0. Lens housing zoa, io is optical housing 10
It is inserted into the pocket 116 of No. 4. The lenses 1.12, 114 are typically arranged in a one-on-one relation directly to the optical axis 72.74. But by moving them laterally relative to each other, convergence can be controlled. :I impergence is the apparent depth a to the projection screen surface when performing reproduced stereoscopic projection.
appearance of depth). These lenses are horizontally 51! It is desirable to have precise depth and special effects. This movement is performed without vertical displacement of the image. To make this adjustment, the upper and lower lens housings 108, 110 are connected to the upper convergence slide 118.
120, respectively. As shown in FIG. 7.10, a convergence slide is fitted into the surface of the optical housing 104 and is further slidably pressed against horizontally oriented shoulders 122,124. Two conveyor slides 118, 120
In order to maintain relative relationship, link 126 (7th°8.
FIG. 10) Rotatably attached to pocket 128 and carrying control pins 130,132. These control pins engage slots 134, 136 in conveyor slides 118, 120 (Fig. 17.10). Thus, as the upper slide 118 moves to the right (looking forward), the lower slide 120 moves to the left. The spring 135 in the slot 137 of the slide 118 presses against the interior wall of the optical housing 104, biasing the slide 118 to the left (looking forward) and biasing the slide 118 to the left (looking forward). External control of convergence is convergence control knob 1
38 (Fig. 6.7.11). The convergence control knob 138 is attached to a bin 140t, which is dynamically attached and locked to a dial 142 (FIG. 8), which can be graduated and carries a cam lamp 144 on its inner surface. . A cam 7 follower 146 is mounted to the top of the main housing 12 for lateral movement. Further, a spring 148 is attached to this (Fig. 8), and the fin ff-150 is attached to the opening holder 96.
and extends rearward through the opening of the spacer 103, and the slide 11
8 is engaged with the slot 152 and
'C! J) - By turning the knob 138, the upper and lower lens housings 108.11
0 move laterally with respect to each other. Also, the lens 112.1
14 laterally to control convergence. Movement of the lens changes the optical path and changes the image offset. Figure Pj52 shows upper and lower images 154 and 156 positioned within one frame of film 158. A small lateral movement of these upper and lower images causes them to be projected at the left and right mouths. The apparent depth of the system, ie the three-dimensional effect, is improved. Knob 138 can be directly inspected by the cameraman to adjust the settings to meet the needs of the photographer. This invention is that! ! Of course, various changes can be made within the scope of the invention. 4. Brief explanation of the drawings Part 1! 1 is a plan view of an optical system in a moving image system for one-frame three-dimensional photography according to the present invention. Figure 2 shows paddy 2-2 in Figure 1.
A portion of the film along is shown. Figure ttS3 is a view taken from the entire surface of the prism along line 3--3 in Figure 1. FIG. 4 is a plan view of the left prism. FIG. 5 is an exploded view of a pair of rhomboid prisms. The tjSG diagram is an exploded view showing the external structure of the moving image system for one-frame three-dimensional photography according to the present invention. FIG. 7 is an exploded view of the same, with parts removed and parts shown in cross section. Figure 8 is! FIG. 6 is a plan view showing an addendum to FIG. FIG. 9 is a side view of the opening. FIG. 10 is a side view of the rear lens system, with a portion removed and a portion depicted in cross section. Figure 11 is 5 in Figure 6.
It is a side view of the 4q structure, with some parts removed and some sections shown. m12 diagram is line 12-12 of fjS11 diagram
FIG. FIG. 13 is a detailed exploded view of the prism mounting structure. Description of Karigo 12...Main housing, 14...Shade, 16
゜18... Blade.

Claims (6)

[Claims] (1) a housing comprising first and second laterally spaced lenses, first and second rhomboid prisms, and upper and lower rear lens configurations, the housing having a front portion; the housing further has first and second laterally spaced optical axes extending from a front portion of the housing toward the object, further having a rear portion, and for mounting the housing on a camera; first and second laterally spaced lenses are on said axis and within said housing, said first rhomboid prism is said first laterally spaced apart; the second rhomboid prism has a face on the second laterally spaced axis; and the first and second rhomboid prisms have a rearwardly facing face. one above the other, thereby forming upper and lower image paths, and said upper and lower rear lens arrangements are above said upper and lower image paths and direct the upper and lower images onto the film plane of the camera. An optical device for forming a three-dimensional moving image, which is characterized by forming an image. (2) The optical device for forming a three-dimensional moving image according to claim (1), wherein the lenses spaced apart in the lateral direction are negative retrofocus lenses. (3) The optical device for forming a three-dimensional moving image according to claim (1), wherein the lenses spaced apart in the horizontal direction are negative achromatic lenses. (4) said lens housing and said housing of said system have mutually engaging guides, said guides oriented parallel to said axis, whereby said lens housing and said negative lens are connected to said camera mounting means; An optical device for forming a three-dimensional moving image according to any one of the above claims, characterized in that the optical device moves further forward and further away, and projects an object onto a film plane of a camera. (5) further comprising a cam and a focus control knob, the cam positioned to engage the lens housing;
the focus control knob is attached to the main housing;
and wherein operation of the focus control knob controls the position of the cam, thereby controlling the position of the lens housing within the main housing for focus control. Claim No. (4)
The optical device for forming a three-dimensional moving image as described in . (6) The first and second rhomboid prisms mentioned above are normal rhomboid prisms, with a front facing surface, a rearward facing surface parallel to the said surface, and a prism tilted at 45°. a prism according to any of the preceding claims, characterized in that the prism is tilted such that the axes of said laterally spaced lenses define vertically spaced image paths. Optical device for forming 3D moving pictures.